Software development on DGUS touch screen of dissolved oxygen analytical instrument for nuclear power plant

In order to satisfy the needs of nuclear plant environment and real-time operation for software interface, the software development of dissolved oxygen analytical instrument based on DGUS touch screen is put forward. The software development synthetically makes use of bus technology, configuration software, serial communication and graphic design. First of all, the whole structure of dissolved oxygen is analyzed; Secondly, interface design is carried out for realizing some operation function, including interface displaying, test state changing, parameter setting. Thirdly, the communication between DGUS touch screen and the lower computer is developed for realizing data transmission in real-time. Finally, the reliability of software design is verified by communication test. The actual result of software operation illustrates that by using DGUS touch screen technology human-computer interface development decreases development cycle of dissolved oxygen analytical instrument, and improves the stability of system. (authors)